This paper aims to enable the relevant use of water main service lifetime and failure data to build a medium or long term infrastructure management plan. Firstly, how to estimate the service lifetime distribution of water mains using observations of decommissioning times which are possibly left-truncated and predominantly right-censored, is shown. Three methods are presented: a non-parametric method another based on the parametric Weibull distribution, and a third based on the parametric Herz distribution. An application with actual data related to grey cast iron water mains of two large French and German water distribution networks illustrates the implementation of the theoretical methods. The paper then investigates the link between failure rate and pipe renewal, and discusses the use of observation-based service time survival functions for infrastructure asset management.

In areas with a high water table, or for cities more prone to flooding, your underground infrastructure can become inundated with groundwater and stormwater.
And despite stormwater systems being built for this type of collection, there are a number of things that can go wrong for both types of collection systems underground—and above ground—that can lead to contamination or degraded infrastructure.
Here are a few problems that could arise, and how to deal with them.
Inflow and Infiltration
When...

By investing in new technologies and infrastructure, together they can help reduce problems associated with water shortages
While both humans and their commercial operations rely on fresh water more than ever, sources of clean water are becoming scarcer. Climate change, droughts, increasing agricultural needs, water pollution, and global economic and population growth all contribute to frequent freshwater supply disruptions.A recent report by Barclays, a transatlantic bank, maintains that the energy industry, a...

A recent study decomposed the changes in industrial water use into three hierarchies (output, technology, and structure) using a refined Laspeyres decomposition model, and found monotonous and exclusive trends in the output and technology hierarchies. Based on that research, this study proposes a hierarchical prediction approach to forecast future industrial water demand. Three water demand scenarios (high, medium, and low) were then established based on potential future industrial structural adjustments, and...

Bourbon Street in New Orleans frequently has stagnant water sitting along the curbs at all hours of the day rain or shine. This phenomenon is somewhat unusual and is likely due to inadequate drainage as the street is more than 100 years old and doesn’t slope adequately in many places. Due to the nature and atmosphere of Bourbon Street it begs the question of what exactly is in that water. Some locals refer to this water as “Bourbon Gumbo.” Microbe Detectives decided to investigate. We were told...

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